Patents by Inventor Donald S. Kingery

Donald S. Kingery has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Telephone
    Patent number: D303666
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: September 26, 1989
    Inventor: Donald S. Kingery
  • Combination handset and base telephone
    Patent number: D311186
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: October 9, 1990
    Inventor: Donald S. Kingery